Fair Value Measurements (Details 5) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012		Mar. 31, 2013		Dec. 31, 2012	Mar. 31, 2012		Dec. 31, 2011
Assets Held-for-sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconcilliation, Recurring Basis, Asset, Transfers to Assets Held for Sale	$ 7,000,000
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Fair value, Beginning Balance	0
Total realized/unrealized gains (losses) included in net income	0	[1],[2],[3]
Total realized/unrealized gains (losses) included in OCI	0	[4]
Purchases	0
Settlements	(2,000,000)
Sales	0
Transfers into Level 3	0	[5]
Transfers out of Level 3	0	[5]
Fair value, Ending Balance	5,000,000				5,000,000
Changes in unrealized gains (losses) included in net income related to financial instruments still held at March 31, 2011	0	[2],[6]
Reinsurance Recoverable [Member] | Guaranteed Withdrawal Benefits [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconcilliation, Recurring Basis, Asset, Transfers to Assets Held for Sale	(7,000,000)				(12,000,000)
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Fair value, Beginning Balance	592,000,000	[3]	1,938,000,000	[3]	1,081,000,000		3,073,000,000	[3]
Total realized/unrealized gains (losses) included in net income	(377,000,000)	[1],[2],[3]	545,000,000	[1],[2],[3]	(837,000,000)		(513,000,000)	[1],[2],[3]
Total realized/unrealized gains (losses) included in OCI	(60,000,000)	[3],[4]	73,000,000	[3],[4]	(170,000,000)		(90,000,000)	[3],[4]
Purchases	0	[3]	0	[3]	0		0	[3]
Settlements	77,000,000	[3]	106,000,000	[3]	163,000,000		192,000,000	[3]
Sales	0	[3]	0	[3]	0		0	[3]
Transfers into Level 3	0	[3],[5]	0	[3],[5]	0		0	[3],[5]
Transfers out of Level 3	0	[3],[5]	0	[3],[5]	0		0	[3],[5]
Fair value, Ending Balance	225,000,000	[3]	2,662,000,000	[3]	225,000,000	[3]	2,662,000,000	[3]
Changes in unrealized gains (losses) included in net income related to financial instruments still held at March 31, 2011	(377,000,000)	[2],[3],[6]	545,000,000	[2],[3],[6]	(837,000,000)		(513,000,000)	[2],[3],[6]
Assets Held-for-sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconcilliation, Recurring Basis, Asset, Transfers to Assets Held for Sale					12,000,000
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Fair value, Beginning Balance					0
Total realized/unrealized gains (losses) included in net income					(2,000,000)
Total realized/unrealized gains (losses) included in OCI					0
Purchases					0
Settlements					(5,000,000)
Sales					0
Transfers into Level 3					0
Transfers out of Level 3					0
Fair value, Ending Balance	5,000,000				5,000,000
Changes in unrealized gains (losses) included in net income related to financial instruments still held at March 31, 2011					(2,000,000)
Limited Partnerships and Other Alternative Investments [Member] | Guaranteed Withdrawal Benefits [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconcilliation, Recurring Basis, Asset, Transfers to Assets Held for Sale	0				0
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Fair value, Beginning Balance	162,000,000				150,000,000	[3]
Total realized/unrealized gains (losses) included in net income	(1,000,000)				3,000,000	[1],[2],[3]
Total realized/unrealized gains (losses) included in OCI	0				0	[3],[4]
Purchases	13,000,000				43,000,000	[3]
Settlements	0				0	[3]
Sales	0				(11,000,000)	[3]
Transfers into Level 3	0				0	[3],[5]
Transfers out of Level 3	0				(11,000,000)	[3],[5]
Fair value, Ending Balance	174,000,000	[3]			174,000,000	[3]
Changes in unrealized gains (losses) included in net income related to financial instruments still held at March 31, 2011	(1,000,000)				3,000,000	[2],[3],[6]
Separate Accounts [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconcilliation, Recurring Basis, Asset, Transfers to Assets Held for Sale	0				0
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Fair value, Beginning Balance	823,000,000		1,346,000,000		583,000,000		1,031,000,000
Total realized/unrealized gains (losses) included in net income	1,000,000	[1],[2],[3]	16,000,000	[1],[2]	16,000,000		33,000,000	[1],[2]
Total realized/unrealized gains (losses) included in OCI		[4]	0	[4]	0		0	[4]
Purchases	4,000,000		24,000,000		259,000,000		239,000,000
Settlements	(1,000,000)		0		(1,000,000)		0
Sales	(5,000,000)		(58,000,000)		(31,000,000)		(401,000,000)
Transfers into Level 3	4,000,000	[5]	14,000,000	[5]	4,000,000		454,000,000	[3],[5]
Transfers out of Level 3	(6,000,000)	[5]	(7,000,000)	[5]	(10,000,000)		(21,000,000)	[3],[5]
Fair value, Ending Balance	820,000,000		1,335,000,000		820,000,000		1,335,000,000
Changes in unrealized gains (losses) included in net income related to financial instruments still held at March 31, 2011	4,000,000	[2],[6]	4,000,000	[2],[6]	12,000,000		10,000,000	[2],[6]
Other Policyholder Funds and Benefits Payable [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	(1,688,000,000)		(5,153,000,000)	[1]	(1,688,000,000)		(5,153,000,000)	[1]	(2,214,000,000)		(3,127,000,000)	(4,155,000,000)	[1]	(5,785,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfer to from Liabilities Held for Sale	32,000,000				43,000,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	464,000,000	[1],[2],[3]	(849,000,000)	[1],[2],[3]	1,255,000,000		670,000,000	[1],[2]
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Total realized/unrealized gains (losses) included in OCI	74,000,000	[4]	(81,000,000)	[1],[4]	206,000,000		102,000,000	[4]
Settlements	(44,000,000)		(68,000,000)	[1]	(65,000,000)		(140,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)	464,000,000	[2],[6]	(849,000,000)	[1],[2],[6]	1,255,000,000		670,000,000	[2],[6]
Other Policyholder Funds and Benefits Payable [Member] | Guaranteed Withdrawal Benefits [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	(1,676,000,000)	[6]	(5,143,000,000)	[1],[6]	(1,676,000,000)	[6]	(5,143,000,000)	[1],[6]	(2,204,000,000)	[6]	(3,119,000,000)	(4,145,000,000)	[1],[6]	(5,776,000,000)	[6]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfer to from Liabilities Held for Sale					43,000,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	466,000,000	[1],[2],[3],[6]	(849,000,000)	[1],[2],[3],[6]	1,259,000,000		671,000,000	[1],[2],[6]
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Total realized/unrealized gains (losses) included in OCI	74,000,000	[4],[6]	(81,000,000)	[1],[4],[6]	206,000,000		102,000,000	[4],[6]
Settlements	(44,000,000)	[6]	(68,000,000)	[1],[6]	(65,000,000)		(140,000,000)	[6]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)	466,000,000	[2],[6]	(849,000,000)	[1],[2],[6]	1,259,000,000		671,000,000	[2],[6]
Consumer Notes [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	(1,000,000)		(4,000,000)	[1]	(1,000,000)		(4,000,000)	[1]	(2,000,000)		(2,000,000)	(4,000,000)	[1]	(4,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfer to from Liabilities Held for Sale	0				0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	1,000,000	[1],[2],[3]	0	[1],[2],[3]	1,000,000		0	[1],[2]
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Total realized/unrealized gains (losses) included in OCI		[4]	0	[4]	0		0	[4]
Settlements	0		0	[1]	0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)	1,000,000	[2],[6]	0	[2],[6]	1,000,000		0	[2],[6]
Equity Linked Notes [Member] | Other Policyholder Funds and Benefits Payable [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	(12,000,000)		(10,000,000)	[1]	(12,000,000)		(10,000,000)	[1]	(10,000,000)		(8,000,000)	(10,000,000)	[1]	(9,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfer to from Liabilities Held for Sale	0				0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	(2,000,000)	[1],[2],[3]	0	[1],[2],[3]	(4,000,000)		(1,000,000)	[1],[2]
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Total realized/unrealized gains (losses) included in OCI		[4]	0	[1],[4]	0		0	[4]
Settlements	0		0	[1]	0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)	(2,000,000)	[2],[6]	0	[1],[2],[6]	(4,000,000)		(1,000,000)	[2],[6]
Liabilities Held for Sale [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	(28,000,000)				(28,000,000)				0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfer to from Liabilities Held for Sale	(32,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	5,000,000	[1],[2],[3]
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Total realized/unrealized gains (losses) included in OCI		[4]
Settlements	(1,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)	5,000,000	[2],[6]
Liabilities Held for Sale [Member] | Other Policyholder Funds and Benefits Payable [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	(28,000,000)				(28,000,000)						0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfer to from Liabilities Held for Sale					(43,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings					14,000,000
Roll Forward of Financial Instruments (Assets) Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)
Total realized/unrealized gains (losses) included in OCI					3,000,000
Settlements					(2,000,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)					$ 14,000,000

[1] The Company classifies gains and losses on GMWB reinsurance derivatives and Guaranteed Living Benefit embedded derivatives as unrealized gains (losses) for purposes of disclosure in this table because it is impracticable to track on a contract-by-contract basis the realized gains (losses) for these derivatives and embedded derivatives.

[2] All amounts in these rows are reported in net realized capital gains (losses). The realized/unrealized gains (losses) included in net income for separate account assets are offset by an equal amount for separate account liabilities, which results in a net zero impact on net income for the Company. All amounts are before income taxes and amortization of DAC.

[3] Includes fair value of reinsurance recoverables of approximately $107 and $2.3 billion as of June 30, 2013 and 2012, respectively, related to a transaction entered into with an affiliated captive reinsurer. See Note 11 - Transactions with Affiliates of Notes to Condensed Consolidated Financial Statements for more information.

[4] All amounts are before income taxes and amortization of DAC.

[5] Transfers in and/or (out) of Level 3 are primarily attributable to the availability of market observable information and the re-evaluation of the observability of pricing inputs.

[6] Includes both market and non-market impacts in deriving realized and unrealized gains (losses).